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3700-67-2
>> Product Introduce
Dioctadecyldimethylammonium Bromide (D1821-Br/DODMAB)
CAS 3700-67-2
Dioctadecyldimethylammonium Bromide (CAS 3700-67-2) is a cationic quaternary ammonium surfactant with the CAS number 3700-67-2 and molecular formula C₃₈H₈₀BrN. This white powdered compound features a unique double long-chain C18 structure, making it an essential raw material for the formulation of liposomes and nanoparticles in advanced biotechnologies such as gene delivery, drug delivery systems, and vaccine adjuvant development. Beyond life sciences, our DODMAB serves as a high-performance cationic surfactant for diverse industrial applications, including as an effective antistatic agent for plastics, a fabric softener in textile processing, and a corrosion inhibitor for metal protection. With a typical purity of ≥98%, it exhibits excellent solubility in organic solvents like chloroform and ethanol. We provide competitive factory-direct pricing with reliable supply for both research and industrial bulk quantities.
>> Main Uses
Dioctadecyldimethylammonium Bromide (D1821-Br/DODMAB, CAS 3700-67-2) is a versatile cationic surfactant widely used in both biomedical and industrial fields. In life sciences, it serves as a key lipid component for constructing liposomes and nanoparticles, enabling efficient gene delivery by complexing with DNA or RNA, enhancing drug encapsulation and controlled release in pharmaceutical formulations, and acting as an immunostimulatory adjuvant in vaccine development to boost immune responses. In industrial applications, DODMAB functions as an effective antistatic agent for plastics and textiles, a fabric softener providing smoothness to fibers, and a corrosion inhibitor forming protective layers on metal surfaces. Additionally, it is employed in material science as a templating agent for fabricating ordered porous films and nanocomposites, and finds use in mineral flotation, wastewater treatment, and specialty chemical formulations.
>> Technical Specifications
Items | Prescription |
Active Matter % | 75±1 |
Appearance 25℃ | Pale yellow to colorless transparent paste |
| Concentration | 75%/85% |
Free amine +HCL amine <% | 1 |
Color(Apha) | <100 |
PH(1% aqueous solution) | 6.0-8.0 |
>> Package and Storage Conditions
Packaged in lBC tanks or blue plastic drums.
Store in a sealed container in a cool, dry place.
Keep away from fire sources and oxidants.
Avoid high temperatures and humid environments to prevent caking due tomoisture absorption.
